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<FONT color="green">001</FONT>    package org.hackystat.telemetry.analyzer.reducer.impl;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.util.List;<a name="line.3"></a>
<FONT color="green">004</FONT>    import org.hackystat.telemetry.analyzer.model.TelemetryDataPoint;<a name="line.4"></a>
<FONT color="green">005</FONT>    import org.hackystat.telemetry.analyzer.model.TelemetryStream;<a name="line.5"></a>
<FONT color="green">006</FONT>    import org.hackystat.telemetry.analyzer.model.TelemetryStreamCollection;<a name="line.6"></a>
<FONT color="green">007</FONT>    import org.hackystat.telemetry.analyzer.reducer.TelemetryReducer;<a name="line.7"></a>
<FONT color="green">008</FONT>    import org.hackystat.telemetry.analyzer.reducer.TelemetryReducerException;<a name="line.8"></a>
<FONT color="green">009</FONT>    import org.hackystat.telemetry.analyzer.reducer.util.IntervalUtility;<a name="line.9"></a>
<FONT color="green">010</FONT>    import org.hackystat.dailyprojectdata.client.DailyProjectDataClient;<a name="line.10"></a>
<FONT color="green">011</FONT>    import org.hackystat.sensorbase.resource.projects.jaxb.Project;<a name="line.11"></a>
<FONT color="green">012</FONT>    import org.hackystat.utilities.time.interval.Interval;<a name="line.12"></a>
<FONT color="green">013</FONT>    <a name="line.13"></a>
<FONT color="green">014</FONT>    /**<a name="line.14"></a>
<FONT color="green">015</FONT>     * Draws a straight line over the chart.<a name="line.15"></a>
<FONT color="green">016</FONT>     * <a name="line.16"></a>
<FONT color="green">017</FONT>     * @author Pavel Senin.<a name="line.17"></a>
<FONT color="green">018</FONT>     */<a name="line.18"></a>
<FONT color="green">019</FONT>    public class StraightLine implements TelemetryReducer {<a name="line.19"></a>
<FONT color="green">020</FONT>    <a name="line.20"></a>
<FONT color="green">021</FONT>      /**<a name="line.21"></a>
<FONT color="green">022</FONT>       * Performs the computation.<a name="line.22"></a>
<FONT color="green">023</FONT>       * <a name="line.23"></a>
<FONT color="green">024</FONT>       * @param project The project.<a name="line.24"></a>
<FONT color="green">025</FONT>       * @param dpdClient The DPD Client.<a name="line.25"></a>
<FONT color="green">026</FONT>       * @param interval The interval over which the computation should be performed.<a name="line.26"></a>
<FONT color="green">027</FONT>       * @param parameters parameters, first one is initial line value, second one is delta.<a name="line.27"></a>
<FONT color="green">028</FONT>       * @return Telemetry stream collection.<a name="line.28"></a>
<FONT color="green">029</FONT>       * @throws TelemetryReducerException If there is any error.<a name="line.29"></a>
<FONT color="green">030</FONT>       */<a name="line.30"></a>
<FONT color="green">031</FONT>      public TelemetryStreamCollection compute(Project project, DailyProjectDataClient dpdClient, <a name="line.31"></a>
<FONT color="green">032</FONT>          Interval interval, String[] parameters)<a name="line.32"></a>
<FONT color="green">033</FONT>          throws TelemetryReducerException {<a name="line.33"></a>
<FONT color="green">034</FONT>        try {<a name="line.34"></a>
<FONT color="green">035</FONT>    <a name="line.35"></a>
<FONT color="green">036</FONT>          Double initialValue = 1D;<a name="line.36"></a>
<FONT color="green">037</FONT>          Double deltaValue = 0D;<a name="line.37"></a>
<FONT color="green">038</FONT>          if (parameters.length &gt; 0) {<a name="line.38"></a>
<FONT color="green">039</FONT>            initialValue = Double.valueOf(parameters[0]);<a name="line.39"></a>
<FONT color="green">040</FONT>          }<a name="line.40"></a>
<FONT color="green">041</FONT>          if (parameters.length &gt; 1) {<a name="line.41"></a>
<FONT color="green">042</FONT>            deltaValue = Double.valueOf(parameters[1]);<a name="line.42"></a>
<FONT color="green">043</FONT>          }<a name="line.43"></a>
<FONT color="green">044</FONT>          Double currentValue = initialValue;<a name="line.44"></a>
<FONT color="green">045</FONT>    <a name="line.45"></a>
<FONT color="green">046</FONT>          TelemetryStream telemetryStream = new TelemetryStream(null);<a name="line.46"></a>
<FONT color="green">047</FONT>          // Use a utility class 'IntervalUtility' to break interval into periods.<a name="line.47"></a>
<FONT color="green">048</FONT>          // One period corresponds to one data point on the telemetry stream.<a name="line.48"></a>
<FONT color="green">049</FONT>          List&lt;IntervalUtility.Period&gt; periods = IntervalUtility.getPeriods(interval);<a name="line.49"></a>
<FONT color="green">050</FONT>          for (IntervalUtility.Period period : periods) {<a name="line.50"></a>
<FONT color="green">051</FONT>            // Compute total elapsed time for the current period.<a name="line.51"></a>
<FONT color="green">052</FONT>            // We make use of the DailyProjectSimpleSdt abstraction layer, instead of the raw data.<a name="line.52"></a>
<FONT color="green">053</FONT>            // We simply add elapsed time for each data to get the total elapsed time for this period.<a name="line.53"></a>
<FONT color="green">054</FONT>            currentValue += deltaValue;<a name="line.54"></a>
<FONT color="green">055</FONT>            TelemetryDataPoint dp = new TelemetryDataPoint(period.getTimePeriod(), new Double(<a name="line.55"></a>
<FONT color="green">056</FONT>                currentValue));<a name="line.56"></a>
<FONT color="green">057</FONT>    <a name="line.57"></a>
<FONT color="green">058</FONT>            // Add the data point to the telemetry stream.<a name="line.58"></a>
<FONT color="green">059</FONT>            telemetryStream.addDataPoint(dp);<a name="line.59"></a>
<FONT color="green">060</FONT>          }<a name="line.60"></a>
<FONT color="green">061</FONT>    <a name="line.61"></a>
<FONT color="green">062</FONT>          // Wrap the telemetry stream in a telemetry stream collection, and return it.<a name="line.62"></a>
<FONT color="green">063</FONT>          TelemetryStreamCollection streams = new TelemetryStreamCollection(null, project, interval);<a name="line.63"></a>
<FONT color="green">064</FONT>          streams.add(telemetryStream);<a name="line.64"></a>
<FONT color="green">065</FONT>          return streams;<a name="line.65"></a>
<FONT color="green">066</FONT>    <a name="line.66"></a>
<FONT color="green">067</FONT>        }<a name="line.67"></a>
<FONT color="green">068</FONT>        catch (Exception e) {<a name="line.68"></a>
<FONT color="green">069</FONT>          throw new TelemetryReducerException(e.getMessage(), e);<a name="line.69"></a>
<FONT color="green">070</FONT>        }<a name="line.70"></a>
<FONT color="green">071</FONT>      }<a name="line.71"></a>
<FONT color="green">072</FONT>    <a name="line.72"></a>
<FONT color="green">073</FONT>    }<a name="line.73"></a>




























































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